At the beginning, no one knew that zombies would ravage the world, and no precautions were taken. By the time they reacted, the earth had already been occupied by zombies. The living people tried to make amends, but they only came up with the method of cleaning up. They first sent out small teams to look for survivors, and then lured the zombies to one place and used artillery shells to destroy them all. After all were wiped out, construction of new homes began. Some people were unwilling to accept such a tragedy, so they convened a group of experts to study time and space travel, hoping to travel through time and space back to the beginning of the tragedy to prevent the tragedy from happening. Everyone said he was crazy, and that time travel only existed in fantasy. He didn't believe that in order to save the world, for the person he loved who sacrificed to save the world, with his unremitting efforts, he succeeded and traveled back to the beginning...
Intention: To love till death